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Related Experiment Videos

Pterygium and dry eye.

M Ishioka1, S Shimmura, Y Yagi

  • 1Department of Ophthalmology, Tokyo Dental College, Tokyo, Japan. misaki@ryogoku.or.jp

Ophthalmologica. Journal International D'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift Fur Augenheilkunde
|May 8, 2001
PubMed
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Dry eye disease is linked to pterygium. Patients with pterygium showed a significantly shortened tear breakup time (BUT), suggesting tear film instability contributes to pterygium development.

Area of Science:

  • Ophthalmology
  • Dry Eye Disease Research
  • Corneal Conditions

Background:

  • Pterygium is a common ocular surface condition.
  • The etiology of pterygium is multifactorial, with environmental factors playing a significant role.
  • Dry eye disease is increasingly recognized as a potential contributing factor to various ocular surface pathologies.

Purpose of the Study:

  • To investigate the relationship between dry eye parameters and the presence of pterygium.
  • To determine if tear film instability is associated with pterygium formation.

Main Methods:

  • Evaluation of tear breakup time (BUT), Schirmer test (with and without anesthesia), and tear function index.
  • Comparison of these dry eye parameters between the affected eye (with pterygium) and the unaffected eye in patients with unilateral pterygium.

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Main Results:

  • A significant reduction in tear breakup time (BUT) was observed in the eye with pterygium.
  • The Schirmer test with anesthesia showed a trend towards reduction, and the tear function index was decreased in the pterygium-affected eye, with marginal statistical significance.

Conclusions:

  • A correlation exists between pterygium and shortened tear breakup time (BUT).
  • Tear film instability may play a role in the initiation and progression of pterygium.
  • Further research is warranted to elucidate the precise mechanisms linking dry eye and pterygium.